Sheaf loader



Ju e 9, 1925.

W. A. BALDWIN SHEAF LOADER Filed Oct. 8, 1923 lnvsn'rok WABaldw'uz av Patented June 9,1925.

UNITED STATES WILLIAM ALBERT BALDWIN, OF N I PEG, MANITOBA, CANADA.

manna.

a s-Gaus and Gotober a, 1922-. and as. 66?,361.

To all whom c't may concern:

Be it lorown that 1, WILLIAM ALBERT Bram-Ivan, of the city of Winnipeg, in the Province of Manitoba, Canada, have invents ed certain new and useful Improvements in Sheaf Loaders of which the following is t e specification.

'il-re invention relates .to improvementsin sh'eaf loaders and particularly to an attache at for iadjustably supporting the pickup conveyor thereof and an object of the invention is to provide means wherebythe operator can adjust and set the nose of the pickup conveyor in respect to the ground and to "arrange the some such that w'thout altering theisetting he can quickly lift the nose of the conveyor to allow the same to clear aground obstruction, the conveyor subsequently returning to its original set position \Vith the above more important object in view "the invention consists essentially in the arrangement and construction of parts hereinafter more particularly described and late refer nce being had to the azc'companyirrg drawing in whiolrr- Fig. 1 is a plan view of-part of a sheaf loader and showing my invention attached thereto.

2jis an enlarged detaiied side View --of the pickup conveyor and my device associ ated therewith. V i

Fig. 3 is a vertical sectional view at 3+3 Figure .2.

Fig. L is. a side view of the outer side of the pickup conveyor and parts associated therewlth.

In the drawing like characters of reference indicate corresponding parts in the several figures. v

The sheaf loadershown is of the type wherein there is an adjustable pickup conveyor 1, the forward end or nose of which is provided with prongs 2 which gather the sheavesfrom the ground and deposit them on the conveyor, the conveyor subsequently discharging them onto a second loading conveyor 3 which elevates the sheaves and discharges them into the rack of an accompanying wagon.

The machine is supplied with a stub tongue 4 attached to the main frame 5 in a location to the side of the conveyor 1 and the forwardend of the stub tongue is sup ported by suitable truck wheels 6. A somewhat elevated platform 7 is suitably sup-- pointed out in the ap-pe1rded;claims,

ported from the main frame in a location *adi'o-inin the rear end of the tongue 4 and the platform carries the drivers seat 8. The conveyor 1 inclines and it has the rear end thereof pivotally supported by a pair of pivot pi 9 and 1-6 from the upper end of of tandards l1 and 12 extending up ardiy from the main frame. The other details the pickup "conveyor are not herein described as they form part of this invention, which relates entirely to a means for adjusting and controlling the forward end of the c-onve or. It is desirable, in a machine 'of hiskind, that one be able to adjust and set the nose of the pickupconveyor respect to the ground and it is also 'desirthat the attendant or driver be able to qnrc'nly raise tire nose of the conveyor to prevent it from striking an ohstruction on 'ext'endlingframe beam to which I perma- I ne ntl'y secure a quadrant 14;, the quadrant is fitted with a downward extension 15 v irch terminates in a. horizontally disposed bearing sleeve 16. This sieeve rota'tably sup ports a comparatively short shaft 1'? and to the ends of the shaft 1 secure upwardly e):- te-nding forwardly inclining 'CTQBKS 18 and 19. The upper end the crank 18 is fitted with a catch .20 which is. adapted to engage with or catch the rear side of an .adjiisting leveri2L the lever having its lower end rotatably mounted on the shaft 17 between the crank and the quadrant and being fitted with the customary hand latch .22, the hand latch controlling the detent 23 which open ates on the quadrant. The upper end of the crank 19 is pivotally connected by a forwardly extending link 24-. to the upper end of a crank 25, the latter crank being per1nanently mounted on a cross shaft 26 which is rotataloly carried in bearing 27 and 28 secured to a transversely extending frame bar 29. The said shaft 26 extends underneath the pickup conveyor and has the outer end fitted with a crank 30 similar to that 25.

to the free end of the crank 30 and the spring is connected by a link 36 to the pivot pin 9.

According to the above arrangement it will be apparent that the weight of the forward end of the pickup conveyor operates through the various links and cranks provided to hold the catch 20 against the rear side of the lever 21 with the result that the lever 21 controls the position of the nose of the conveyor in respect to the ground. One can accordingly adjust the nose of the pick up conveyor as he sees fit by adjusting the lever as the catch will follow the lever.

As aforesaid, it is desirable that the attendant be able to quickly raise the nose of the conveyor to escape an obstruction of the ground which might harm the same. To this end a foot pedal 37 is pivotally mounted on the platform in a location adjoining the drivers seat and the lower end ofthe foot pedal is connected by a connecting rod 38to the upper end of the crank 18.

By observing particularly Fig. 2, it will be obvious that if the driver shoves forward on the upper end of the foot pedal he will throw the crank 18 rearwardly and in so doing will cause the crank 19 to turn in the same direction. lhis movement operates through the other connections provided to raise the nose of the pickup conveyor. After the obstruction is passed the attendant relieves the foot pressure from the pedal and the nose of the conveyor drops down to the original position, at which time the catch 20 is again engaged with the rear side of the lever 21. Accordingly the original setting of the nose of the pickup conveyor is not changed. The spring 35 resists the falling action of the forward end of the conveyor so it acts as a cushion and relieves the attendant of considerable weight when manipulating the lever or foot pedal.

What I claim as my invention is:

1. In a sheaf loader, the combination with a pickup conveyor and means pivotally supporting the upper end of said conveyor, of

an adjusting lever adjustably supporting the forward end of the pickup conveyor lIl a set position in respect to the ground and a foot pedal connected with the forward end of the conveyor, said foot pedal being adapted to raise the conveyor to pass a ground obstruction without having to operate the lever.

2. In a sheaf loader, the combination with a pickup conveyor and means pivotally supporting the upper end of said conveyor, of a pivotally mounted adjusting lever, means for locking the lever in pre-selected set positions, a crank fitted with a catch and engaging the lever and adapted in the turning of the lever in one direction to be positively shifted with the same, a connection between the crank and the forward end of the pickup conveyor, said connection supporting the pickup conveyor in an adjusted position in respect to the ground, dependent upon the setting of the lever, and a footpedal connected with the crank and adapted to operate the crank independently of the lever to raise the forward end of the pickup conveyor.

3. In a sheaf loader, the combination with a pickup conveyor and means pivotally supporting the upper end of said conveyor, of a rotatably mounted comparatively short shaft adjoining the side of the pickup conveyor, a stationary quadrant positioned concentric to the shaft, a lever rotatably mounted on the shaft and provided with the cus-' tomary hand latch and detent operating on the quadrant, a pair of cranks permanently secured to the shaft, one of said cranks being provided with a catch engaging the rear side of the lever, an operating connection between the other of the cranks and the forward end of the pickup conveyor adapted in the rearward movement of the cranks under the influence of the lever to raise the forward end of the pickup conveyor, a pivotally mounted foot pedal and a connection between the foot pedal and the crank carrying the catch.

Signed at Winnipeg, this 14th day of September 1923.

WVILLIAM ALBERT BALDWIN.

In the presence GERALD S. ROXBURGH. 

